As you want to get admission for M.Tech in world’s top collage. Here as per your requirement I am providing you top ranking colleges in world.

Massachusetts Institute of Technology (MIT) United States. 100.0
University of California, Berkeley United States 93.9
Stanford University United States 85.3
California Institute of Technology (Caltech) United States 81.6
University of Cambridge United Kingdom 76.2
Carnegie Mellon University United States 71.6
Imperial College London United Kingdom 70.9
Georgia Institute of Technology United States 68.9
University of Tokyo Japan 67.4
University of Toronto Canada 66.0